公开(公告)号：AU2005257530A1

公开(公告)日：2006-01-05

申请号：AU2005257530

申请日：2005-06-28

Applicant: CANON KK

Inventor： SANADA MIKIO ,  WATANABE TOMONARI ,  HAKAMADA SHINICHI ,  NITO YASUHIRO ,  TAKIZAWA YOSHIHISA ,  IMAI TAKASHI ,  TOKUDA YUI ,  IWATA TETSU ,  SUGAMA SADAYUKI ,  OGASAWARA MASASHI

IPC: C09D11/00 ,  B41J2/01 ,  B41M5/00

Abstract: Disclosed is an aqueous ink comprising at least water, a plurality of water-soluble organic solvents and a coloring material. The coloring material is a pigment, and, it contains a pigment particle having at least one ionic group bonded to a surface of the pigment particle directly or via another atomic group. The plurality of water-soluble organic solvents have a good medium or good mediums for the pigment and a poor medium or poor mediums for the pigment. The poor medium does not solvate perfectly or substantially the pigment. The ionic group undergoes perfectly or substantially no ionic dissociation in the poor medium. Also, among the respective Ka values of the plurality of water-soluble organic solvents as determined by the Bristow method, the Ka value of the poor medium is maximum.

公开(公告)号：AU2005257524A1

公开(公告)日：2006-01-05

申请号：AU2005257524

申请日：2005-06-28

Applicant: CANON KK

Inventor： IMAI TAKASHI ,  NITO YASUHIRO ,  TAKAYAMA HIDEKI ,  HAKAMADA SHINICHI ,  SANADA MIKIO ,  SUGAMA SADAYUKI ,  IWATA TETSU

IPC: C09D11/00 ,  B41J2/01 ,  B41M5/00

Abstract: The present invention aims to provide an ink which has a sufficiently large area factor even in a small ink droplet quantity and can obtain images having a high image density, and further has a superior storage stability. According to the present invention, a cyan ink is provided which is used in an ink set having four kinds of aqueous inks consisting of a cyan ink, a magenta ink, a yellow ink and a black ink in which each ink comprises at least water, a water-insoluble coloring material, and a plurality of water-soluble organic solvents having a good medium or good mediums for the water-insoluble coloring material and a poor medium or poor mediums for the water-insoluble coloring material, wherein, the ratio B 1 /A 1 is from 0.5 or more to 3.0 or less, where A 1 denotes the total content (mass%) of the good medium based on the total mass of the cyan ink and B 1 denotes the total content (mass%) of the poor medium based on the total mass of the cyan ink, and a water-soluble organic solvent which shows the maximum Ka value among the respective Ka values of the plurality of water-soluble organic solvents as determined by the Bristow method is the poor medium.

公开(公告)号：AU2003264466A1

公开(公告)日：2004-04-08

申请号：AU2003264466

申请日：2003-09-17

Applicant: CANON KK

Inventor： MISHINA SHINYA ,  HAKAMADA SHINICHI ,  NITO YASUHIRO ,  TSUJIMURA MASASHI ,  TAKADA YOICHI

IPC: B41J2/01 ,  B41M5/00 ,  C09D11/00 ,  C09D11/322 ,  C09D11/324 ,  C09D11/328 ,  C09D11/54 ,  C09D11/02

Abstract: An ink set including a water-based ink containing a coloring material in a state dissolved or dispersed in an aqueous medium and a water-based reactive liquid containing a first component for insolubilizing or aggregating the coloring material in the ink by mixing with the water-based ink. The water-based reactive liquid contains a water-soluble high-molecular compound in a state dissolved therein. The water-based ink contains a second component, which is not insolubilized by the first component and the coloring material, in a state dissolved therein. The water-soluble high-molecular compound is not insolubilized by the first component and the coloring material but insolubilized by the second component.

公开(公告)号：BR102013025174A2

公开(公告)日：2014-10-21

申请号：BR102013025174

申请日：2013-09-30

Applicant: CANON KK

Inventor： NITO YASUHIRO ,  KAMO HISAO ,  HATTA NAOYA

IPC: B41M5/52 ,  B41M5/50

公开(公告)号：DE602005022311D1

公开(公告)日：2010-08-26

申请号：DE602005022311

申请日：2005-06-28

Applicant: CANON KK

Inventor： IMAI TAKASHI ,  SANADA MIKIO ,  NITO YASUHIRO ,  IWATA TETSU ,  HAKAMADA SHINICHI ,  SUGAMA SADAYUKI ,  TAKAYAMA HIDEKI

IPC: C09D11/00 ,  B41J2/01 ,  B41M5/00

公开(公告)号：CA2565704C

公开(公告)日：2009-08-04

申请号：CA2565704

申请日：2005-06-28

Applicant: CANON KK

Inventor： IMAI TAKASHI ,  TAKAYAMA HIDEKI ,  NITO YASUHIRO ,  SANADA MIKIO ,  IWATA TETSU ,  SUGAMA SADAYUKI ,  HAKAMADA SHINICHI

IPC: C09D11/00 ,  B41J2/01 ,  B41M5/00

Abstract: The present invention aims to provide an ink which has a sufficiently large area factor even in a small ink droplet quantity and can obtain images having a high image density, and further has a superior storage stability. According to the present invention, a cyan ink is provided which is used in an ink set having four kinds of aqueous inks consisting of a cyan ink, a magenta ink, a yellow ink and a black ink in which each ink comprises at least water, a water-insoluble coloring material, and a plurality of water-soluble organic solvents having a good medium or good mediums for the water-insoluble coloring material and a poor medium or poor mediums for the water-insoluble coloring material, wherein, the ratio B1/A1 is from 0.5 or more to 3.0 or less, where A1 denotes the total content (mass%) of the good medium based on the total mass of the cyan ink and B1 denotes the total content (mass%) of the poor medium based on the total mass of the cyan ink, and a water-soluble organic solvent which shows the maximum Ka value among the respective Ka values of the plurality of water-soluble organic solvents as determined by the Bristow method is the poor medium.

公开(公告)号：AU2005257524B2

公开(公告)日：2009-07-30

申请号：AU2005257524

申请日：2005-06-28

Applicant: CANON KK

Inventor： IMAI TAKASHI ,  NITO YASUHIRO ,  TAKAYAMA HIDEKI ,  HAKAMADA SHINICHI ,  SANADA MIKIO ,  SUGAMA SADAYUKI ,  IWATA TETSU

IPC: C09D11/00 ,  B41J2/01 ,  B41M5/00

Abstract: The present invention aims to provide an ink which has a sufficiently large area factor even in a small ink droplet quantity and can obtain images having a high image density, and further has a superior storage stability. According to the present invention, a cyan ink is provided which is used in an ink set having four kinds of aqueous inks consisting of a cyan ink, a magenta ink, a yellow ink and a black ink in which each ink comprises at least water, a water-insoluble coloring material, and a plurality of water-soluble organic solvents having a good medium or good mediums for the water-insoluble coloring material and a poor medium or poor mediums for the water-insoluble coloring material, wherein, the ratio B 1 /A 1 is from 0.5 or more to 3.0 or less, where A 1 denotes the total content (mass%) of the good medium based on the total mass of the cyan ink and B 1 denotes the total content (mass%) of the poor medium based on the total mass of the cyan ink, and a water-soluble organic solvent which shows the maximum Ka value among the respective Ka values of the plurality of water-soluble organic solvents as determined by the Bristow method is the poor medium.

公开(公告)号：BRPI0512003A

公开(公告)日：2008-01-22

申请号：BRPI0512003

申请日：2005-06-28

Applicant: CANON KK

Inventor： IMAI TAKASHI ,  SANADA MIKIO ,  NITO YASUHIRO ,  IWATA TETSU ,  HAKAMADA SHINICHI ,  SUGAMA SADAYUKI ,  TAKAYAMA HIDEKI

IPC: C09D11/00 ,  B41J2/01 ,  B41M5/00

Abstract: The present invention aims to provide an ink which has a sufficiently large area factor even in a small ink droplet quantity and can obtain images having a high image density, and further has a superior storage stability. According to the present invention, a cyan ink is provided which is used in an ink set having four kinds of aqueous inks consisting of a cyan ink, a magenta ink, a yellow ink and a black ink in which each ink comprises at least water, a water-insoluble coloring material, and a plurality of water-soluble organic solvents having a good medium or good mediums for the water-insoluble coloring material and a poor medium or poor mediums for the water-insoluble coloring material, wherein, the ratio B 1 /A 1 is from 0.5 or more to 3.0 or less, where A 1 denotes the total content (mass%) of the good medium based on the total mass of the cyan ink and B 1 denotes the total content (mass%) of the poor medium based on the total mass of the cyan ink, and a water-soluble organic solvent which shows the maximum Ka value among the respective Ka values of the plurality of water-soluble organic solvents as determined by the Bristow method is the poor medium.

公开(公告)号：DE60211812T2

公开(公告)日：2006-11-30

申请号：DE60211812

申请日：2002-08-21

Applicant: CANON KK

Inventor： SUZUKI MARIKO ,  KOIKE SHOJI ,  AOKI MAKOTO ,  SHIROTA KOROMO ,  TAKAYAMA HIDEKI ,  NITO YASUHIRO

IPC: B41J2/01 ,  B41J2/175 ,  B41M5/00 ,  C09D11/00 ,  C09D11/322 ,  C09D11/326 ,  C09D11/38

Abstract: Provided is an ink-jet ink suitable for high speed printing and reduced ink ejection amount, which ink comprise a water-insoluble coloring material dispersed in water with a resinous dispersant, glycerin, ethylene urea, and polyoxyethylene alkyl ether with HLB not lower than 13.

公开(公告)号：DE60303072D1

公开(公告)日：2006-03-30

申请号：DE60303072

申请日：2003-09-16

Applicant: CANON KK

Inventor： NITO YASUHIRO ,  MISHINA SHINYA ,  HAKAMADA SHINICHI ,  TAKADA YOICHI OHTA-KU ,  AKASAKA TOSHIFUMI ,  TSUJIMURA MASASHI

IPC: B41M5/00 ,  B41J2/21 ,  C09D11/00

Abstract: A reaction solution to be used for image recording with an ink containing a coloring material in a dissolved or dispersed state in order to achieve a high level of image density with stability, wherein the reaction solution contains a polyvalent metal ion and an organic solvent to destabilize the dissolved or dispersed state of the coloring material in the ink in contact with the ink, has a pH of 2 or higher, and has a buffering action for pH, wherein the buffering action means it can maintain pH variation within the range of 0.5 before and after the addition of 1.0 ml of a 0.1 N aqueous lithium hydroxide solution to 50 ml of the reaction solution.